This property defines approval of Symbols as Unicode in version 6.3 in 2013
Characters like ,,, etc. are listed under 6.3 Age.
5 Characters are present in 6.3 Age starting with the Unicode point U+061C that represents the character .
Currently, as per latest version 15.0.0, Unicode supports 26 number of Age. Here are a few examples - 1.1,10.0,11.0, etc.